Brick-machine



UNITED STATES PATENT OFFICE.

I). W. GOULD, OF INDEPENDENCE, IOWA.

BmcK-MAcHlNE.

Specieation forming part of Letters Patent No. 38,041, dated March 3l, 1863.

To @ZZ whom, t may concern.:

Beit known that I, D. W. GOULD, of Independence, in the county of Buchanan and State of Iowa, have invented certain new and useful Improvements in Brick-Machines; and I do hereby declare that the following is a full and complete description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a top view. Fig. 2 is a vertical section in the direction of the line w m in Fig. l. Fig. 3 is a view of the under side. Figs. 4 and 5 represent the mold.

Like letters of reference refer to like parts in the several views.

My improvement relates to the devices for filling the molds, to separating the clay in theV cylinder from that in the molds, to the structure of the molds, and the manner of discharging the soft brick therefrom.

In Figs. l, 2, and 3, A represents a cylin der placed on and secured to the lower part- B, of the machine. In the center of this cylinder is an upright shaft, O, with radial arms, as represented in Fig. 2. To the top of this shaft is secured the draw-bar D, to which the power is applied that revolves the shaft and operates the machine.

E and F are planes secured to opposite sides of the cylinder at the top, and inclined on the under sides reversely to each other.

G, Fig. l, is an adjustable pressure-plate, near the bottom of the cylinder, permanently connected'to the shaft by the rod G', passing through lugs upon the upper end and forward end of the plate, a spring, I, being underneath and elevating the back end, as represented in Fig. 2. To the back end of this plate is attached the rod H, that passes up through a slot in the guide Il', the key a keeping it near the outer edge under the inclined planes, which can be removed and placed on the other side of the rod, bringing the rod inside of the planes, when no action will be produced upon the plate G by the revolution of the shaft, which is desirable sometimes to prepare the clay in the cylinder before it is ready for molding.

h is a small friction-roller in the top of the rod, causingit to move easily under the planes.

In the bottom of the cylinder, at the two sides, under the inclined planes, are rectangular openings O and I), just the size of the molds, that are placed below to receive the clay. Underneath the cylinder, and connected with the shaft, is a cam arrangement, K, Fig. 3, that moves the plate M backward and forward by the revolution of the shaft, as represented and indicated by the dotted lines.

N is a cam secured to the shaft, and n n friction-wheels on the plate M. Between these wheels is the slot m for the journal of the shaft as the plate is moved horizontally. When the shaft is turned, the cam N moves round against the Wheel n, forcing the plate out until it.is in the position indicated by the dotted lines, and the cam, still turning in the same direction by means of the wheel n' in a similar manner, reverses the motion of the plate until it is in the position seen at O in Fig. 2. The object of this sliding plate is to alternately open and cover the openings O and P in the cylinder, or, in other words, striking the mold.

S and T are movable floors, operated by levers L, (indicated in Fig. 2,) connected to the rods S' and T. To the middle of these rods are attached the jointed levers c and d, that are secured to the under side of the movable floors, as shown in Fig. 2. By lowering the levers L the floors are moved out, as indicated in Fig. 2, on which are placed the molds, and then, by raising the levers, they are carried under theopenin gs O and P.

The clay of which the brick is to be formed is prepared in the cylinder in the usual manner by the action of the radial arms until it is broken up and tempered to the proper c0nsisteney. A mold is placed under one or both of the openings O and P, as before described. The shaft being turned in the direction of the arrow in Fig. l, and as the plate is inclined upward in that direction, the clay is carried round, filling the mold in the opening O. The rod H, passing down under the inclined plane E, increases the pressure on the back edge of the plate that passes last over the mold, in this way compressing the clay and lillipg compactly the mold. 'As the shaft continues to turn by the action of the cam arrangement, before described, the plate M is moved over opening O, cutting oitl the clay in the cylinder from that in the mold, and uncovering the opening I? as the plate G moves round to fill the mold in that opening, as it did in the opening O, before described, every revolution of the shaft filling the two molds-one on each side-Which should be removed and replaced alternately. By lowering the levers L the molds lled with the clay are carried out on the movable floors.

The mold Y, Figs. 4 and 5, of a suitable form and size, is made of metal7 or any appropriate material. The pistons e, Fig. 5, forming the bottom of the mold, are secured by screws and pins to the bed-plate, W, as represented, and can be moved up and down in the cavities of the mold by the lever Y. To the lower end of this lever is rigidly attached a transverse rod that passes through the sidev plates, f, and to each end is secured a lever,

f plate W, near the corners, one arm of each being attached to the ends of the lever g by the conneetingrods k k, and the other arm connected to the mold V by the rods j j. These connections are all made by pivot-joints. The compound levers on both sides of the bedplate correspond and move simultaneously With the movement of the lever Y.

When the mold is in the machine, it is in the position represented by Fig. 4E, and When the levers'on the sides are in that position the lever Y must necessarily be horizontal,

and fits in a groove, y, in the bed-plate, firmly v securing the mold in position to receive the clay for the brick. When the mold is lled and conveyed to the yard to be emptied, it is placed upside down and the lever Yraised, as in Fig. 5, which draws up the sides of the mold. The pistons forming the bottom being stationary, the brick is left in a perfect form underneath the mold, as indicated by the dotted lines W.

What I claim as my improvement, and de sire lo secure by Letters Patent, is-

l. The pressure plate G, operating as and for the purpose specified.

2. The sliding plate M and cam N, in combination with the openings O and P, for the purposes set forth.

3. The molds, Figs. 4 and 5, when constructed substantially as herein described and operating as specified.

n. vv. eoULn.

Witnesses:

W. H. BURRIDGE, HENRY Vorn. 

